composite stabilizer security of some of the factors

PVC compound stabilizer security should be three aspects to consider, first, the safety of using the processing of raw materials, the second is the user's security and the third is the safety of waste on the PVC processing aid  environment. Processors of security through liquefaction stabilizers, paste technology, granulation and other measures to solve them. , Security protection for the user, can be prepared by a stabilizer or a reactive high molecular weight stabilizers to improve its resistance to pumping, but taking into account the effect of stabilizing the chemical reaction of the molecular level, the above method is not the most appropriate method, the good way to use high security or stabilizers. Stabilizer is selected, the stabilization process must also be considered in the resin and stabilizing agent, or stabilizers react with each other chemicals generated security.
From a variety of security stabilizers see, cadmium stabilizers in the near future will be discontinued. But Impact modifier for PVC  a slow process, one of the reasons is that most in the use of cadmium stabilizers when costs are increased by 10% -20%, and cadmium-based stabilizers can not be common to a wide range of PVC compound. Such as processing a narrow range, but also often need to use auxiliary stabilizer compensate for its performance deficiencies. Now cadmium stabilizers performance has reached a performance of cadmium stabilizers. Calcium zinc stabilizers have been developed rapidly. And in powder, paste and liquid, as well as standard-level and non-toxic level for sale, second-generation calcium zinc stabilizer in food and pharmaceutical packaging has been replaced by methyl tin tin and zinc base.
Lead stabilizers set its extraction resistance is small, so the use of security when not a problem, but there are  antimony oxide security issues harm the environment. Since lead-based stabilizers, low cost, high efficiency, many companies use this, as non-lead compound stabilizer PVC development, lead salt stabilizer being replaced with non-toxic environment. As many countries ban lead, lead-based stabilizers are withdrawn from the market
In short, the composite heat stabilizer help scale production, lead salt heat stabilizer for the development of a new direction. Compound lead salt stabilizer is an important indicator of the lead content, the current produced by the compound lead salt stabilizer lead content is generally 20% -60%; in the production of PVC plastic window profiles dosage of 3.5-6 parts